I have had a bad case of ick before, and nothing died. well, in the lest 2 days i have lost a flame hawk, a powder brown tang, and a neon goby. I cant figure out what the hell is going on. The only change i made was dripping 2 gal of Kalk overnight one time, and the tank warmed up the other day but not enough to cause this. All 4 other tangs have ick, both clowns too. The only ones not affected are the engineer gobies. I cant possibly get them all out to dose, so what should I do? I dont want to lose anymore fish, this is the most I have ever lost. :(